2 Troubleshooting Procedures
NB300/305 Series Maintenance Manual
43
2.25 3G Troubleshooting
S T A R T
P e rfo rm d ia g n o s tic te s t
(P ro c e d u re 1 )
W a s a 3 G p ro b le m d e te c te d ?
P e rfo rm c o n n e c to r a n d re p la c e m e n t c h e c k
(P ro c e d u re 2 )
R e p la c e 3 G a n te n n a /u n it
R e p la c e s y s te m b o a rd
E N D
Y e s
3 G sy ste m is n o t
fa u lty . C o n tin u e
tro u b le sh o o tin g - re fe r
to F ig u re 2 .1
N o
Figure 2-17 3G troubleshooting process
Notes: 3G Antenna assemble rule as below:
color of antenna Assemble location
Red antenna
Main/1
Blue antenna
Aux/2
The 3G antenna wire, 3G unit or system board may each be the source of a 3G fault. Any of
these components may be damaged. To determine if the computer’s wireless LAN system is
Summary of Contents for mini NB300
Page 1: ...Toshiba Personal Computer NB300 Maintenance Manual TOSHIBA CORPORATION CONFIDENTIAL ...
Page 13: ...Chapter 1 Hardware Overview ...
Page 16: ......
Page 30: ...Chapter 2 Troubleshooting Procedures ...
Page 31: ......
Page 77: ...Chapter 3 Tests and Diagnostic ...
Page 99: ...3 Tests and Diagnostics NB300 305 Series Maintenance Manual 23 ...
Page 109: ...3 Tests and Diagnostics NB300 305 Series Maintenance Manual 33 ...
Page 121: ...3 Tests and Diagnostics NB300 305 Series Maintenance Manual 45 ...
Page 131: ...3 Tests and Diagnostics NB300 305 Series Maintenance Manual 55 ...
Page 134: ...Chapter 4 Replacement Procedures ...
Page 245: ...E 18 CONFIDENTIAL NB300 Series Maintenance Manual Figure JP keyboard ...